Publication: Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations
Дата
2021
Авторы
Adam, J.
Adamczyk, L.
Adams, J. R.
Adkins, J. K.
Alekseev, I.
Brandin, A. V.
Khyzhniak, Y. V.
Kochenda, L.
Kravtsov, P.
Nigmatkulov, G.
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Аннотация
© 2021 American Physical Society. Nonmonotonic variation with collision energy (sNN) of the moments of the net-baryon number distribution in heavy-ion collisions, related to the correlation length and the susceptibilities of the system, is suggested as a signature for the quantum chromodynamics critical point. We report the first evidence of a nonmonotonic variation in the kurtosis times variance of the net-proton number (proxy for net-baryon number) distribution as a function of sNN with 3.1 σ significance for head-on (central) gold-on-gold (Au+Au) collisions measured solenoidal tracker at Relativistic Heavy Ion Collider. Data in noncentral Au+Au collisions and models of heavy-ion collisions without a critical point show a monotonic variation as a function of sNN.
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Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations / Adam, J. [et al.] // Physical Review Letters. - 2021. - 126. - № 9. - 10.1103/PhysRevLett.126.092301
URI
https://www.doi.org/10.1103/PhysRevLett.126.092301
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85102174274&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000627618200010
https://openrepository.mephi.ru/handle/123456789/23755